A little goes a long way. Energy is great and without jitters, focus is stellar even when drinking alcohol you never feel drunk, sex will last hours. What else could you ask for? I use about a gram or less mixed with a beverage and that does just fine for hours.
This along with the other two strains I use - Red Vein Borneo for sedative, and White Vein Maeng Da for energy - makes the effects exponentially better than either one by themselves. The equivalent of Zinc and Vitamin C together rather than alone. Completely synergistic.
I messed around with doses to see what the most effective dose was with just extract and then I started to use 250mg 1 hour after having a tsp of w.v. and it makes it last so much longer for my chronic pain, it even took a few times of using it that way to notice it was happening because I was still being able to fly through the day and not even have the slightest bit of my normal symptoms to have my brain think about discomfort.